sizeof

Beispiel

Beispiel 1

Gibt die Anzahl der Elemente im Array zurück:

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token variable">$ cars</span> <span class="token operator">=</span> <span class="token keyword">Array</span> <span class="token punctuation">(</span> <span class="token string double-quoted-string">"Volvo"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"BMW"</span> <span class="token punctuation">,</span> <span class="token string double-quoted-string">"Toyota"</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword"></span></span><mark><span class="token keyword">Echogröße</span> <span class="token punctuation">(</span> <span class="token variable">$</span> <span class="token function">Cars</span> <span class="token punctuation">)</span></mark><span class="token punctuation"></span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span>

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Beispiel 2

Berechnen Sie rekursiv die Anzahl der Elemente in einem Array:

 <span class="token php language-php"><span class="token delimiter important"><? Php</span>
<span class="token variable">$ cars</span> <span class="token operator">=</span> <span class="token keyword">Array</span>
  <span class="token punctuation">(</span>
  <span class="token string double-quoted-string">"Volvo"</span> <span class="token operator">=></span> <span class="token keyword">Array</span>
  <span class="token punctuation">(</span>
  <span class="token string double-quoted-string">"Xc60"</span> <span class="token punctuation">,</span>
  <span class="token string double-quoted-string">"Xc90"</span>
  <span class="token punctuation">)</span> <span class="token punctuation">,</span>
  <span class="token string double-quoted-string">"BMW"</span> <span class="token operator">=></span> <span class="token keyword">Array</span>
  <span class="token punctuation">(</span>
  <span class="token string double-quoted-string">"X3"</span> <span class="token punctuation">,</span>
  <span class="token string double-quoted-string">"X5"</span>
  <span class="token punctuation">)</span> <span class="token punctuation">,</span>
  <span class="token string double-quoted-string">"Toyota"</span> <span class="token operator">=></span> <span class="token keyword">Array</span>
  <span class="token punctuation">(</span>
  <span class="token string double-quoted-string">"Highlander"</span>
  <span class="token punctuation">)</span>
  <span class="token punctuation">)</span> <span class="token punctuation">;</span>

<span class="token keyword">Echo</span> <span class="token string double-quoted-string">"General Count:"</span> <span class="token operator">.</span><span class="token function"></span></span><mark> <span class="token function">Größe</span> <span class="token punctuation">(</span> <span class="token variable">$ Cars</span> <span class="token punctuation">)</span></mark><span class="token punctuation"></span> <span class="token operator">.</span> <span class="token string double-quoted-string">"<br>"</span> <span class="token punctuation">;</span>
<span class="token keyword">Echo</span> <span class="token string double-quoted-string">"Rekursives Zählen:"</span> <span class="token operator">.</span><span class="token function"></span><mark> <span class="token function">Größe</span> <span class="token punctuation">(</span> <span class="token variable">$ Cars</span> <span class="token punctuation">,</span> <span class="token number">1</span> <span class="token punctuation">)</span></mark><span class="token punctuation"></span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span>

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